Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Leica X (Typ 113) and Leica T Typ 701 side-by-side from the front, back and top in their relative dimensions. Leica X (Typ 113) has external dimensions of 133 x 73 x 78 mm (5.24 x 2.87 x 3.07″) and weighs 486 g (1.07 lb / 17.14 oz) (including batteries). Leica T Typ 701 has external dimensions of 134 x 69 x 33 mm (5.28 x 2.72 x 1.3″) and weighs 384 g (0.85 lb / 13.55 oz) (including batteries).
Below you can see the front-view size comparison of the Leica X (Typ 113) and the Leica T Typ 701. Leica T Typ 701 is 4mm shorter and 45mm thinner than Leica X (Typ 113) but it is also 1mm wider. As you can tell, actually this is not a fair size comparison since Leica X (Typ 113) has a built-in lens but Leica T Typ 701 doesn't. Once you put a lens on T Type 701, its thickness will increase significantly.
Comparison image of the Leica X (Typ 113) and the Leica T Typ 701 Size, Weight and External Dimensions - Front View
Now lets look at the top view comparison of Leica X (Typ 113) and Leica T Typ 701.
Top View Comparison image of the Leica X (Typ 113) and the Leica T Typ 701 Size
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Leica T Typ 701 is significantly lighter (102g ) than the Leica X (Typ 113) which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on T Type 701, the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Leica X (Typ 113) nor Leica T Typ 701 provides any type of weather sealing in their bodies, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Compact Cameras with Weather Sealing Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Leica T Typ 701's 3.70" LCD screen is slightly larger than Leica X (Typ 113)'s 3 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.